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Finding the Fourth Proportional to 304,015.20, 456,022.80 and 255,026.40

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Solution

The fourth proportional to 304,015.20, 456,022.80 and 255,026.40 is: 382,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,015.20 : 456,022.80 = 255,026.40 : x
  2. Step 2: Convert to fraction form
    304,015.20/456,022.80 = 255,026.40/x
  3. Step 3: Cross multiply
    304,015.20x = 456,022.80 × 255,026.40
  4. Step 4: Simplify right side
    304,015.20x = 116,297,853,001.92
  5. Step 5: Solve for x
    x = 116,297,853,001.92/304,015.20
  6. Step 6: Final answer
    x = 382,539.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.